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1
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Yamaguchi H, Kondo M, Sasaki T, Sakamoto M, Ono H, Kawatsuki N. Polarized Fluorescence of N-Salicylideneaniline Derivatives Formed by In Situ Exchange from N-Benzylideneaniline Side Groups in Photoaligned Liquid Crystalline Copolymer Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:2862-2871. [PMID: 35194988 DOI: 10.1021/acs.langmuir.1c03158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polarized fluorescence of oriented N-salicylideneaniline (SA) derivatives is explored based on the thermally stimulated photoinduced molecular reorientation of liquid crystalline (LC) copolymethacrylate with N-benzylideneaniline derivative (NBA2) and benzoic acid (BA) side groups. The LC copolymer films show significant cooperative molecular reorientation of the NBA2 and BA side groups (D > 0.7). Subsequent thermal hydrolysis of the NBA2 side groups yields free phenylamine moieties. These moieties can form oriented SA derivatives via in situ condensation with 2-hydroxybenzaldehyde derivatives. The excited-state intermolecular proton transfer of the oriented SA molecules induces polarized fluorescence at 510-548 nm with a polarization ratio up to 6.2. Direct in situ exchange from the oriented NBA2 to SA derivatives achieves polarized fluorescence similar to that of the SA side groups.
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Affiliation(s)
- Hinano Yamaguchi
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2188 Shosha, Himeji 671-2280 Japan
| | - Mizuho Kondo
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2188 Shosha, Himeji 671-2280 Japan
| | - Tomoyuki Sasaki
- Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka 940-2188, Japan
| | - Moritsugu Sakamoto
- Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka 940-2188, Japan
| | - Hiroshi Ono
- Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka 940-2188, Japan
| | - Nobuhiro Kawatsuki
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2188 Shosha, Himeji 671-2280 Japan
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2
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Photoinduced phase transition of N-benzylideneaniline liquid crystalline polymer and applications of photodismantlable adhesives. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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3
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Norisada Y, Kondo M, Sasaki T, Sakamoto M, Ono H, Kawatsuki N. Birefringent Control of Photo-Oriented Polymeric Films by in situ Exchange of Functional Moieties. J PHOTOPOLYM SCI TEC 2021. [DOI: 10.2494/photopolymer.34.511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yunosuke Norisada
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo
| | - Mizuho Kondo
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo
| | - Tomoyuki Sasaki
- Department of Electrical Engineering, Nagaoka University of Technology
| | | | - Hiroshi Ono
- Department of Electrical Engineering, Nagaoka University of Technology
| | - Nobuhiro Kawatsuki
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo
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Kondo M, Kojima D, Ootsuki N, Kawatsuki N. Photoinduced Exfoliation of a Polymeric
N
‐Benzylideneaniline Liquid‐Crystalline Composite Based on a Photoisomerization‐Triggered Phase Transition. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Mizuho Kondo
- Department of Applied Chemistry Graduate School of Engineering University of Hyogo 2167 Shosha Himeji Hyogo 671‐2280 Japan
| | - Daijoro Kojima
- Department of Applied Chemistry Graduate School of Engineering University of Hyogo 2167 Shosha Himeji Hyogo 671‐2280 Japan
| | - Naoya Ootsuki
- Technical Development Department ThreeBond Co., Ltd. Sagamihara 252‐0146 Japan
| | - Nobuhiro Kawatsuki
- Department of Applied Chemistry Graduate School of Engineering University of Hyogo 2167 Shosha Himeji Hyogo 671‐2280 Japan
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5
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Ito A, Norisada Y, Inada S, Kondo M, Sasaki T, Sakamoto M, Ono H, Kawatsuki N. Photoinduced Reorientation and Photofunctional Control of Liquid Crystalline Copolymers with in Situ-Formed N-Benzylideneaniline Derivative Side Groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1164-1172. [PMID: 33326742 DOI: 10.1021/acs.langmuir.0c03059] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The influence of the annealing conditions on the thermally stimulated photoinduced molecular reorientation of a photoinactive liquid crystalline polymethacrylate with phenyl aldehyde and benzoic acid side groups (P1) doped with 4-methoxyaniline, which forms photoalignable 4-methoxy-N-benzylideneaniline (MNBA) side groups in situ, was investigated. Light exposure and subsequent thermal stimulation under a N2 atmosphere realized sufficient cooperative molecular reorientation (D > 0.7), but the simultaneous thermal hydrolysis of the MNBA groups under humid air lowered the molecular reorientation performance. By contrast, subsequent thermal hydrolysis of MNBA after molecular reorientation introduced different aromatic amines into the reoriented P1 film, which regulated the birefringence and photofunctionality of the oriented film.
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Affiliation(s)
- Akari Ito
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2188 Shosha, Himeji 671-2280, Japan
| | - Yunosuke Norisada
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2188 Shosha, Himeji 671-2280, Japan
| | - Shogo Inada
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2188 Shosha, Himeji 671-2280, Japan
| | - Mizuho Kondo
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2188 Shosha, Himeji 671-2280, Japan
| | - Tomoyuki Sasaki
- Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka 940-2188, Japan
| | - Moritsugu Sakamoto
- Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka 940-2188, Japan
| | - Hiroshi Ono
- Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka 940-2188, Japan
| | - Nobuhiro Kawatsuki
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2188 Shosha, Himeji 671-2280, Japan
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Audia B, Bugakov MA, Boiko NI, Pagliusi P, Cipparrone G, Shibaev VP. Photopatterning of Azobenzene‐Containing Liquid Crystalline Triblock Copolymers: Light‐Induced Anisotropy and Photostabilization. Macromol Rapid Commun 2020; 41:e2000384. [DOI: 10.1002/marc.202000384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/13/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Biagio Audia
- Department of Physics University of Calabria Ponte P. Bucci, Cubo 33B Rende CS 87036 Italy
| | - Miron A. Bugakov
- Faculty of Chemistry Lomonosov Moscow State University Leninskie Gory‐1 Moscow 119991 Russia
| | - Natalia I. Boiko
- Faculty of Chemistry Lomonosov Moscow State University Leninskie Gory‐1 Moscow 119991 Russia
| | - Pasquale Pagliusi
- Department of Physics University of Calabria Ponte P. Bucci, Cubo 33B Rende CS 87036 Italy
- CNR‐Nanotec UOS Cosenza Ponte P. Bucci, Cubo 33B Rende CS 87036 Italy
| | - Gabriella Cipparrone
- Department of Physics University of Calabria Ponte P. Bucci, Cubo 33B Rende CS 87036 Italy
| | - Valery P. Shibaev
- Faculty of Chemistry Lomonosov Moscow State University Leninskie Gory‐1 Moscow 119991 Russia
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8
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Ikoma H, Kondo M, Kawatsuki N. Photoinduced Reorientation and Surface Relief Formation in Diblock and Random Copolymers with Benzoic Acid and Alkyloxy Side Groups. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Hiromi Ikoma
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, Shosha, Himeji 671-2280, Japan
| | - Mizuho Kondo
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, Shosha, Himeji 671-2280, Japan
| | - Nobuhiro Kawatsuki
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, Shosha, Himeji 671-2280, Japan
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